DIN 509-2006 技术制图.退刀槽.类型和尺寸

December 2006DEUTSCHE NORMEnglish price group 9No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut für Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 01.100.20; 25.020!$J:F"1392335www.din.de DDIN 509Technical drawings –Undercuts –Types and dimensionsTechnische Zeichnungen –Freistiche –Formen, Maße©SupersedesDIN 509:1998-06www.beuth.deIn case of doubt, the German-language original should be consulted as the authoritative text.Translation by DIN-Sprachendienst.Document comprises 11 pagesDIN 509:2006-12ForewordThis standard has been prepared by the Normenausschuss Technische Grundlagen (NATG) (Fundamental Technical Standards Committee), Section 6 “Technical Product Documentation”, Technical Committee NA 152-06-05-AA “Technical Drawing”, with the cooperation of experts from the Normenausschuss Maschinenbau (NAM) and Normenausschuss Werkzeuge und Spannzeuge (FWS) (Mechanical Engineering, and Tools and Clamping Devices Standards Committees, respectively).AmendmentsThis standard differs from DIN 509:1998-06 as follows:a) The title now includes the introductory element “Technical drawings”.b) The machining allowance symbol “z” has been replaced by the symbols “z1” and “z2”.c) In Figure 4 the machining allowances indicated are now the same size.d) In Figure 5 the dimensions “g” and “f” have been deleted.e) In Figure 6 the symbol for counterbore “a/2” has been changed to “a”.f) Figures 7, 8, 9 and 10 are in a different order.g) In clause 9, example 2 has been corrected to read “Undercut E 1,2 × 0,2”.h) In Figures 9 and 10 (formerly 7 and 8), Details “X” and “Y”, the tolerance “± 0,1” has been added to“R1,2”.i) In Figures 9 and 10 (formerly 7 and 8) the roughness data have been deleted.j) Table 1 has been rearranged.k) In Table 1 the values for radii are now preceded by an “R”.l) In Table 1 the value for dimension “f” for type G undercuts has been corrected to “0,9”.m) In Table 1 the value for dimension “f” for Undercut H 1,2 × 0,3 has been corrected to “2,4”.n) In Table 1 the value for dimension “t2” for Undercut F 4 × 0,5 is now included.o) In Table 1 the value for dimension “g” for Undercut G 0,4 × 0,2 has been corrected to “1,1”.p) In Table 2 dimensions “e1” and “e2” are now included in one column for type H undercuts, as they are equally long.q) Table 2 has been rearranged.r) In Table 3 the values for dimension “a” have been divided in half and re-calculated.s) In clause 5 surface roughness specifications have been brought in line with DIN EN ISO 1302.t) In clause 6 the second example now includes the designation “MRR” (“material removal required”) in accordance with DIN EN ISO 1302.2DIN 509:2006-12 u) Clause 9 now makes reference to the preferred type of line for drawings, as well as to the fact that the designation is to be given in conjunction with a leader line and a reference line.v) References have been updated.w) The standard has been editorially revised.Previous editionsDIN 509: 1956-04, 1966-01, 1966,08, 1998-06ForewordForms and dimensions of type G and H undercuts conform to those for indexable inserts as in DIN ISO 6987 and DIN 4969-1 (type G rhombic inserts) and as in DIN ISO 6987, DIN 4968 and DIN 4969-1 (type H triangular inserts). It is economically expedient to use the above inserts to produce the undercuts specified in this standard.Although Figures 1 to 6 show undercuts for shafts and axles, the numerical values specified here also apply to bores by analogy.All radii specified in this standard are in accordance with DIN 250.1 ScopeThis standard applies to undercuts on turned parts and in bores, and helps reduce the variety of tools needed to produce such undercuts.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.DIN EN ISO 1302, Geometrical Product Specifications (GPS) — Indication of surface texture in technical product documentationDIN ISO 128-22, Technical drawings — General principles of presentation — Part 22: Basic conventions and applications for leader lines and reference linesDIN ISO 128-24, Technical drawings — General principles of presentation — Part 24: Lines on mechanical engineering drawings3DIN 509:2006-1243 Terms and definitionsFor the purposes of this standard the following term applies.undercutclearance groove of specified form and dimensions created by removing material at an inner corner of a rotationally symmetric workpiece and which is necessary for subsequent machining and assembly with mating parts4 Dimensions4.1 Type E undercutsType E undercuts are suitable where the planar surface is not subjected to high fatigue loads and where the cylindrical surface will be subsequently machined if necessary. They are also suitable where mating partshave a relatively large counterbore or will not be in contact with the planar surface.Keyd 1 workpiece diameterf width of undercut r radius of undercut t 1 depth of recess z 1 machining allowanceFigure 1 — Undercut for workpieces with cylindrical surface intended for subsequent machiningDIN 509:2006-1254.2 Type F undercutsType F undercuts are to be used on workpieces with surfaces that are perpendicular to each other and will besubsequently machined, if necessary.Keyd 1 workpiece diameterf ,g width of undercut r radius of undercut t 1, t 2 depth of recess z 1, z 2 machining allowancesFigure 2 — Undercut for workpieces with planar and cylindrical surfacesintended for subsequent machining4.3 Type G undercutsType G undercuts are to be used on workpieces which are not subjected to high fatigue loads and where asmall included angle is required.Keyd 1 workpiecediameter f , g width of undercut r radius of undercut t 1, t 2 depth of recess z 1, z 2 machining allowancesFigure 3 — Undercut with small included angleDIN 509:2006-1264.4 Type H undercutsType H undercuts are to be used on workpieces with surfaces that are perpendicular to each other and will besubsequently machined if necessary (but with a greater included angle).Keyd 1 workpiecediameter f , g width of undercut r radius of undercutt 1, t 2depth of recess z 1, z 2 machining allowancesFigure 4 — Undercut with large included angle5 Surface roughnessRa 3,2; Rz1max 25NOTEIn practice the surface of undercuts can only be checked by visual inspection.Any other roughness parameters shall be subject to agreement taking part function into consideration.6 DesignationThe designation of undercuts shall include the following elements: ⎯ the term “Undercut”;⎯ the number of this standard, “DIN 509”; ⎯ a hyphen;⎯ designation of the form by the relevant letter;⎯ the undercut size (radius r and depth t 1 separated by “×”); ⎯ any surface roughness parameters.EXAMPLE 1Designation of a type E undercut having a radius, r , of 0,8 mm and a depth, t 1, of 0,3 mm:Undercut DIN 509 – E 0,8 × 0,3EXAMPLE 2Designation of a type E undercut having a radius, r , of 0,8 mm and a depth, t 1, of 0,3 mm, materialremoval required (MRR as in DIN EN ISO 1302), and with Ra 1,6 μm and Rz1max 16 μm:Undercut DIN 509 – E 0,8 × 0,3 – MRR Ra 1,6; Rz1max 16DIN 509:2006-127Table 1 – Undercut dimensionsDimensions in mmt 1t 2fCorresponding diameter d 1 b forworkpiecesr a ±0,1+0,1 +0,05 +0,2subjected to subjected to higherTypeSeries 1Series 20 0 0gnormal loads calternating loads R0,2 0,1 – 1 – Over Ø 1,6 up to Ø 3 – R0,4 0,2 – 2 – Over Ø 3 up to Ø 18 – R0,6 0,2 – 2 – Over Ø 10 up to Ø 18 – R0,6 0,3 – 2,5 – Over Ø 18 up to Ø 80 – R0,8 0,3 – 2,5 –Over Ø 18 up to Ø 80 –R1 0,2 – 2,5 ––Over Ø 18 up to Ø 50R1 0,4 – 4 – Over Ø 80 –R1,2 0,2 – 2,5 –– Over Ø 18 up to Ø 50R1,2 0,4 – 4 – Over Ø 80 –R1,6 0,3 – 4 – – Over Ø 50 up to Ø 80 R2,5 0,4 – 5 – – Over Ø 80 up to Ø 125 ER4 0,5 – 7 ––Over Ø 125R0,2 0,1 0,1 1 (0,9) Over Ø 1,6 up to Ø 3 – R0,4 0,2 0,1 2 (1,1) Over Ø 3 up to Ø 18 – R0,6 0,2 0,1 2 (1,4) Over Ø 10 up to Ø 18 – R0,6 0,3 0,2 2,5 (2,1) Over Ø 18 up to Ø 80 – R0,8 0,3 0,2 2,5 (2,3)Over Ø 18 up to Ø 80 –R1 0,2 0,1 2,5 (1,8)–Over Ø 18 up to Ø 50R1 0,4 0,3 4 (3,2) Over Ø 80 –R1,2 0,2 0,1 2,5 (2)– Over Ø 18 up to Ø 50R1,2 0,4 0,3 4 (3,4) Over Ø 80 –R1,6 0,3 0,2 4 (3,1) – Over Ø 50 up to Ø 80 R2,5 0,4 0,3 5 (4,8)– Over Ø 80 up to Ø 125FR4 0,5 0,3 7 (6,4) –Over Ø 125G R0,4 0,2 0,2 (0,9) (1,1)Over Ø 3 up to Ø 18 – R0,8 0,3 0,05 (2,0) (1,1) Over Ø 18 up to Ø 80 –HR1,2 0,3 0,05 (2,4) (1,5)– Over Ø 18 up to Ø 50a Undercuts with series 1 radii (as in DIN 250) are to be given preference.b Does not apply to parts with a short shoulder and thin-walled parts. When a workpiece has different diameters, it may be expedient for manufacturing reasons to use several undercuts having the same form and size. cType G applies only to workpieces which are not subjected to high fatigue loads.DIN 509:2006-1287 Machining allowancesThe machining allowances z 1 and z 2 specified in Table 2 offset the transition of the undercut to the machining surfaces by dimensions e 1 and e 2, respectively, which are in turn determined by the magnitude of theallowances and the relevant sidewall angles of the undercut.Keye 1, e 2 transition offset z 1, z 2 machining allowancesFigure 5 — Machining allowances, Type F undercut Table 1 — Machining allowances and dimensions e 1 and e 2Dimensions in mmType E Type FType G Type H z 1, z 2e 1e 1e 2e 1 and e 2e 1 and e 20,1 0,37 0,37 0,71 0,32 0,37 0,15 0,56 0,56 1,07 0,48 0,56 0,2 0,75 0,75 1,42 0,63 0,75 0,25 0,93 0,93 1,78 0,79 0,93 0,3 1,12 1,12 2,14 0,95 1,12 0,4 1,49 1,49 2,85 1,27 1,49 0,5 1,87 1,87 3,56 1,59 1,87 0,6 2,24 2,24 4,27 1,9 2,24 0,7 2,61 2,61 4,98 2,22 2,61 0,8 2,99 2,99 5,69 2,54 2,99 0,9 3,36 3,36 6,4 2,85 3,36 1,0 3,73 3,73 7,12 3,17 3,73DIN 509:2006-1298Counterbores on mating partsKeya counterbore dimensiond 1 workpiecediameter d 2 =d 1 + 2aFigure 6 — Counterbore on mating partTable 2 — Dimension aDimensions in mmUndercut size Minimum dimension a for typer × t 1 E F G H 0,2 × 0,1 0,2 0 – –0,4 × 0,2 0,3 0 0 – 0,6 × 0,2 0,5 0,15 ––0,6 × 0,3 0,4 0 – – 0,8 × 0,3 0,6 0,05 – 0,351,0 × 0,2 0,9 0,45 – – 1,0 × 0,4 0,7 0 – – 1,2 × 0,2 1,1 0,6 ––1,2 × 0,3 – – – 0,65 1,2 × 0,4 0,9 0,1 – –1,6 × 0,3 1,4 0,6 – – 2,5 × 0,4 2,2 1,0 – – 4,0 × 0,5 3,6 2,1 ––9 Indications on drawingsUndercuts shown in technical drawings shall preferably be drawn using a continuous wide line, type 01.2 as in DIN ISO 128-24. Designations shall be given in conjunction with a leader line and reference line as in DIN ISO 128-22 (see Figures 7 and 8). Figures 9 and 10 show how to present full details.DIN 509:2006-1210EXAMPLE 1 Undercut F 1,2 × 0,2 EXAMPLE 2 Undercut E 1,2 ×0,2Figure 7 — Simplified representation of undercutF 1,2 × 0,2Figure 8 — Simplified representation of undercutE 1,2 × 0,2Dimensions in mmDimensions in mmNOTE Surface roughness information as in Clause 5 of this standard or as in DIN EN ISO 1302NOTE Surface roughness information as in Clause 5 of this standard or as in DIN EN ISO 1302Figure 9 — Detailed representation of undercutF 1,2 × 0,2 Figure 10 — Detailed representation of undercutE 1,2 × 0,2DIN 509:2006-12BibliographyDIN 250, RadiiDIN 4968, Indexable hard metal inserts with rounded corners, without fixing holeDIN 4969-1, Indexable ceramic inserts with rounded corners, without fixing holeDIN ISO 6987, Indexable hard material inserts with rounded corners, with partly cylindrical fixing hole — Dimensions11。